Air compressor with axially extending cooling fins

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a first embodiment of an air compressor with axially extending cooling fins, showing our new design;

FIG. 2 is a perspective view showing the opposite side;

FIG. 3 is a bottom plan view;

FIG. 4 is a perspective view of a second embodiment of an air compressor with axially extending cooling fins, showing our new design;

FIG. 5 is a perspective view showing the side opposite to that shown in FIG. 4;

FIG. 6 is a top perspective view of the embodiment shown in FIGS. 4 and 5;

FIG. 7 is a side view of a third embodiment of an air compressor with axially extending cooling fins, showing our new design. Except for the addition of a third cylinder, the design shown in FIG. 7 is the same as that shown in FIGS. 4 to 6.

The air compressor is characterized by having one, two, or three outwardly square cylinders on which cooling fins extend axially of the cylinder.

Referenced Cited
U.S. Patent Documents
D131894 November 1940 Houston
D179746 February 1957 Sudmeier
D221307 July 1971 Bills
D221404 August 1971 Hussey
Patent History
Patent number: D271203
Type: Grant
Filed: Feb 27, 1981
Date of Patent: Nov 1, 1983
Assignee: Durr-Dental GmbH & Co., KG (Baden-Wurttemberg)
Inventors: Peter Schutt (Baden-Wurttemberg), Klaus Nitsche (Baden-Wurttemberg), Horst Grindler (Baden-Wurttemberg), Hans-Joachim Hofmann (Baden-Wurttemberg), Hans E. Slany (Baden-Wurttemberg)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lynn Wilder
Attorneys: Robert E. Burns, Emmanuel J. Lobato, Bruce L. Adams
Application Number: 6/239,166
Classifications
Current U.S. Class: Compressor (D15/9)
International Classification: D1502;